Chemical-retainer for sewer-pipes



N. R. HAGEMAN.

CHEMICAL RETAINER FOR SEWER PIPES. 7

APPLICATION FILED OCT. 12, I920.

1,883,938 ed uly 5, 1921.

Wrrhisss:

Z O Z jyekomflfiqyefiwz 1 I ATTORNEY NELSON R. HAGEMAN, OF RENO, NEVADA.

CHEMICAL-RETAINER FOR SEWER-PIPES.

Specification of Letters Patent.

Patented July 5, 1921.

Application filed October 12, 1920. Serial No. 416,365.

T 0 all whom it may concern:

Be it known that I, NnLsoN R. HAGEMAN, a citizen of the United States,residin at Reno, in the county of VVashoe and tate of Nevada, haveinvented new and useful Improvements in Chemical-Retainers forSewer-Pipes, of which the following is a specification.

This invention relates to a chemical container for use on vent pipes ofsewers and the like for purifying the gases from the sewer before theyescape into the atmosphere, the principal object of the invention beingto provide a container which can be easily and quickly refilled with thechemical and which is so formed as to make the gases pass through thechemicals before escaping from the device. 7

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a longitudinal sectional view through the invention.

Fig. 2 is a cross section on line 22 of Fig. 1.

In these views 1 indicates a cylindrical container which is providedwith a reduced lower part 2 which is screw threaded to engage the screwthreaded upper end of the vent pipe 8. The bottom of part 1 is providedwith a hole 4 which is of smaller diameter than the diameter of part 2and the lower open end of a perforated tube 5 is threaded in said hole.The upper end of this tube 1s closed as shown. Short pipes 6 have theirinner ends connected with the upper part of the container, the outerends of these pipes extending downwardly as shown. The top of thecontainer is closed by the screw threaded cover 7.

It will thus be seen that when the device 1s placed on the end of a ventpipe and a suitable purifying chemical placed therein the gases passingfrom the vent pipe will'be caused to pass into the perforated tube 5,through the perforations therein into the container and after passingthrough the chemical will flow from the pipes 6. Thus the gases will bepurified by the chemicals so that they will be free from all injuriousproperties when they escape into the atmosphere.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claim.

What I claim is A device of the class described comprislng a containerhaving a reduced lower end screw threaded to engage the screw threadedupper end of the vent pipe, a perforated tube within the containerhaving its lower end in communication with said reduced part and itsupper end closed, a vent pipe connected with the upper part of thecontainer and a screw threaded cover closing the top of the container.

In testimony whereof I affix m signature.

NELSON R. HA EMAN.

